Supreme Charge

At 20th level, whenever the cavalier makes a charge attack while mounted, he deals double the normal amount of damage (or triple if using shortspear, spear or longspear or with spirited charge or quadruple if both). In addition, if the cavalier confirms a critical hit on a charge attack while mounted, the target is stunned for 1d4 rounds. A Will save reduces this to staggered for 1d4 rounds. The DC is equal to 10 + the cavalier's base attack bonus.